import { ElementRef, Renderer2 } from "@angular/core";
/**
 * Directive for Zoom Effect
 *
 * @example:
 *  `<div zoom-editor maxScale='4' minScale='0.5' accumulativeVal='0.1'></div>`
 */
export declare class ZoomDirective {
    _ref: ElementRef;
    renderer: Renderer2;
    maxScale: number;
    minScale: number;
    accumulativeVal: number;
    currentScale: number;
    constructor(_ref: ElementRef, renderer: Renderer2);
    onwheel(event: any): void;
}